PopulationPyramids
UN World Population Prospects Data Visualized

USA vs Peru: Population Comparison 2026

The United States has 314,113,347 more people than Peru (10.0× as many): 349.0 million vs 34.9 million in 2026. Median age is 38.7 in the United States and 30.6 in Peru; fertility is 1.63 vs 1.93 children per woman.

United States

2026
0
people
Median age
38.7
Fertility (TFR)
1.63
Working age (15–64)
64.3%
Trend
Growing (+0.51%)

Peru

2026
0
people
Median age
30.6
Fertility (TFR)
1.93
Working age (15–64)
67.0%
Trend
Growing (+1.00%)

Population pyramids, 2026

Total Population

United States

349.0M

vs

Peru

34.9M

Youth (0-14)

United States

16.9%

vs

Peru

23.3%

Elderly (65+)

United States

18.8%

vs

Peru

9.7%

Where the two pyramids differ

The pyramids are overlaid so you can read the difference by age and sex: the longer bar in each band marks the country with more people of that age.

📊 Understanding the Population Difference Chart

This visualization shows where and by how much the populations differ between United States and Peru for each age group, split by gender:

Left Side (Males)

Blue = United States has more males

Green = Peru has more males

Right Side (Females)

Pink = United States has more females

Orange = Peru has more females

💡 How to Read: Each age group shows up to 2 bars - one on the left (male difference) and one on the right (female difference). The bar's color tells you which country has more people, and the bar's length shows by how much. For example, if you see a green bar on the left, it means Peru has more males in that age group.

Notable Differences (>20% variance):

Ages 0-4: United States has 598.8% more people
Men: 8.2M more in United States • Women: 7.8M more in United States
United States: 9.5M men, 9.1M women • Peru: 1.4M men, 1.3M women
Population Ratio
18.6M
2.7M
Ages 5-9: United States has 618.8% more people
Men: 8.6M more in United States • Women: 8.1M more in United States
United States: 9.9M men, 9.5M women • Peru: 1.4M men, 1.3M women
Population Ratio
19.4M
2.7M
Ages 10-14: United States has 659.7% more people
Men: 9.4M more in United States • Women: 8.8M more in United States
United States: 10.8M men, 10.2M women • Peru: 1.4M men, 1.4M women
Population Ratio
21.0M
2.8M
Ages 15-19: United States has 689.1% more people
Men: 10.2M more in United States • Women: 9.6M more in United States
United States: 11.7M men, 11.0M women • Peru: 1.5M men, 1.4M women
Population Ratio
22.7M
2.9M
Ages 20-24: United States has 729.7% more people
Men: 10.7M more in United States • Women: 10.0M more in United States
United States: 12.1M men, 11.4M women • Peru: 1.4M men, 1.4M women
Population Ratio
23.5M
2.8M
Ages 25-29: United States has 723.4% more people
Men: 10.4M more in United States • Women: 9.6M more in United States
United States: 11.8M men, 11.0M women • Peru: 1.4M men, 1.4M women
Population Ratio
22.8M
2.8M
Ages 30-34: United States has 754.0% more people
Men: 10.8M more in United States • Women: 9.9M more in United States
United States: 12.2M men, 11.3M women • Peru: 1.4M men, 1.4M women
Population Ratio
23.5M
2.8M
Ages 35-39: United States has 817.5% more people
Men: 11.3M more in United States • Women: 10.4M more in United States
United States: 12.6M men, 11.8M women • Peru: 1.3M men, 1.3M women
Population Ratio
24.3M
2.7M
Ages 40-44: United States has 870.4% more people
Men: 10.8M more in United States • Women: 10.1M more in United States
United States: 12.0M men, 11.3M women • Peru: 1.2M men, 1.2M women
Population Ratio
23.3M
2.4M
Ages 45-49: United States has 921.1% more people
Men: 10.2M more in United States • Women: 9.6M more in United States
United States: 11.2M men, 10.7M women • Peru: 1.1M men, 1.1M women
Population Ratio
21.9M
2.1M
Ages 50-54: United States has 935.4% more people
Men: 9.3M more in United States • Women: 8.9M more in United States
United States: 10.3M men, 9.9M women • Peru: 978K men, 972K women
Population Ratio
20.2M
1.9M
Ages 55-59: United States has 1151.8% more people
Men: 9.6M more in United States • Women: 9.5M more in United States
United States: 10.5M men, 10.3M women • Peru: 832K men, 827K women
Population Ratio
20.8M
1.7M
Ages 60-64: United States has 1458.5% more people
Men: 9.9M more in United States • Women: 10.0M more in United States
United States: 10.5M men, 10.7M women • Peru: 672K men, 689K women
Population Ratio
21.2M
1.4M
Ages 65-69: United States has 1725.7% more people
Men: 9.4M more in United States • Women: 9.9M more in United States
United States: 9.9M men, 10.4M women • Peru: 538K men, 576K women
Population Ratio
20.3M
1.1M
Ages 70-74: United States has 1841.0% more people
Men: 7.6M more in United States • Women: 8.5M more in United States
United States: 8.0M men, 9.0M women • Peru: 414K men, 463K women
Population Ratio
17.0M
877K
Ages 75-79: United States has 1954.8% more people
Men: 5.7M more in United States • Women: 6.8M more in United States
United States: 6.0M men, 7.1M women • Peru: 294K men, 346K women
Population Ratio
13.2M
640K
Ages 80-84: United States has 1950.2% more people
Men: 3.5M more in United States • Women: 4.4M more in United States
United States: 3.6M men, 4.6M women • Peru: 180K men, 224K women
Population Ratio
8.3M
403K
Ages 85-89: United States has 1797.6% more people
Men: 1.7M more in United States • Women: 2.5M more in United States
United States: 1.8M men, 2.6M women • Peru: 97K men, 135K women
Population Ratio
4.4M
232K
Ages 90-94: United States has 1900.5% more people
Men: 658K more in United States • Women: 1.2M more in United States
United States: 694K men, 1.3M women • Peru: 36K men, 62K women
Population Ratio
2.0M
98K
Ages 95-99: United States has 2218.4% more people
Men: 158K more in United States • Women: 367K more in United States
United States: 166K men, 384K women • Peru: 7K men, 17K women
Population Ratio
550K
24K
Ages 100+: United States has 2124.2% more people
Men: 17K more in United States • Women: 56K more in United States
United States: 18K men, 59K women • Peru: 823 men, 3K women
Population Ratio
77K
3K

Demographic comparison, 2026

IndicatorUnited StatesPeruDifference
Population (2026)349,035,49434,922,147United States has 314.1 million more (10.0×)
Change 2025–2026+0.5% (Growing)+1.0% (Growing)
Median age (2026)38.730.6United States older by 8.2 yrs
Total fertility rate1.63 — 0.48 below replacement1.93 — 0.18 below replacement
Fertility rate, 2030 (UN projection)1.631.87
Birth rate (per 1,000)10.515.3
Population 2050 (UN projection)380.8 million (+9.1%)40.6 million (+16.2%)
Peak populationPeaks 2100Peaks 2066

Differences by age group, 2026

AgeUnited States (M / F)Peru (M / F)Difference
0-49549K / 9091K1359K / 1309KUnited States has 598.8% more people aged 0-4
5-99938K / 9464K1374K / 1325KUnited States has 618.8% more people aged 5-9
10-1410774K / 10190K1404K / 1356KUnited States has 659.7% more people aged 10-14
15-1911671K / 11002K1460K / 1413KUnited States has 689.1% more people aged 15-19
20-2412122K / 11403K1431K / 1405KUnited States has 729.7% more people aged 20-24
25-2911801K / 11017K1377K / 1394KUnited States has 723.4% more people aged 25-29
30-3412170K / 11342K1350K / 1403KUnited States has 754.0% more people aged 30-34
35-3912570K / 11772K1305K / 1348KUnited States has 817.5% more people aged 35-39
40-4412004K / 11314K1187K / 1215KUnited States has 870.4% more people aged 40-44
45-4911227K / 10699K1068K / 1079KUnited States has 921.1% more people aged 45-49
50-5410280K / 9907K978K / 972KUnited States has 935.4% more people aged 50-54
55-5910481K / 10283K832K / 827KUnited States has 1151.8% more people aged 55-59
60-6410548K / 10660K672K / 689KUnited States has 1458.5% more people aged 60-64
65-699910K / 10428K538K / 576KUnited States has 1725.7% more people aged 65-69
70-748040K / 8981K414K / 463KUnited States has 1841.0% more people aged 70-74
75-796042K / 7108K294K / 346KUnited States has 1954.8% more people aged 75-79
80-843636K / 4632K180K / 224KUnited States has 1950.2% more people aged 80-84
85-891758K / 2638K97K / 135KUnited States has 1797.6% more people aged 85-89
90-94694K / 1262K36K / 62KUnited States has 1900.5% more people aged 90-94
95-99166K / 384K7K / 17KUnited States has 2218.4% more people aged 95-99
100+18K / 59K1K / 3KUnited States has 2124.2% more people aged 100+

Frequently Asked Questions

Which has more people, USA or Peru?

The United States has more: 349.0 million vs 34.9 million in 2026 — 10.0× as many, 314.1 million more people.

Which country is older?

The United States, with a median age of 38.7 vs 30.6 in Peru (2026).

Which has higher fertility?

Peru, at 1.93 children per woman vs 1.63 in the United States. Replacement is 2.1, so both are below it.

How will USA and Peru compare in 2050?

By 2050 the UN projects the United States at 380.8 million (+9.1% from 2026) and Peru at 40.6 million (+16.2%).

Are USA and Peru growing or shrinking?

The United States is growing (+0.5% in 2026); Peru is growing (+1.0%).

Explore Individual Countries

United States population pyramid→Peru population pyramid→

Related Comparisons

United StatesvsRussiaUnited StatesvsBrazilUnited StatesvsIndonesiaUnited StatesvsPakistanUnited StatesvsBangladeshUnited StatesvsNigeria